Full-time: That's going to do it for this live commentary from the U.S.'s Copa America quarterfinal win over Ecuador. Thanks very much for joining us.

Full-time: The full-time whistle blows in Seattle, where the U.S. top Ecuador 2-1 in their Copa America quarterfinal! Jurgen Klinsmann's side advance to the Copa America semifinal, where they'll meet the winner of Argentina vs. Venezuela.

90'+4 Steve Birnbaum comes on in place of Zardes as the U.S. counts the seconds to full-time.

90'+2 Ecuador have the U.S. hemmed in their own third now, applying constant pressure, but the American defense has stood tall.

90' Ecuador manager Gustavo Quinteros has been sent off shortly after a water bottle was thrown to the field from the Ecuadorian bench following a foul called against his side.

89' The U.S. desperately trying to run out the clock, running balls into the corners and lumping it upfield when that's not possible.

84' Guzan goes into the book for time-wasting.

83' If the U.S. concedes again and we end 90 minutes level at 2-2, there will be no extra time. This game would head straight to penalties.

81' Graham Zusi replaces Bedoya, who picked up a yellow card just prior to all the Ecuadorian chances.

79' The momentum is all with Ecuador right now. Klinsmann trying to get the crowd, and his team, back into this thing. The Yanks look desperate for some fresh legs. And we have another skirmish in front of the U.S. bench as Arroyo shoves Besler to the ground. No fouls, no cards.

77' Enner Valencia lets the U.S. off the hook. The West Ham attacked strikes the woodwork with Brad Guzan beaten. Jurgen Klinsmann's men lucky to still be leading this match.

75' Clint Dempsey makes way for Kyle Beckerman, as the U.S. looks to hunker down and protect this 2-1 lead for the final 15 minutes.

74' GOAL for Ecuador! Arroyo halves the Americans' lead and Guzan's shutout streak comes to an end at 301 minutes.

67' That's Dempsey's third assist of the tournament. He leads the Copa America in that category, and is tied as the leading goal scorer with three.

65' GOAL for the U.S.! Gyasi Zardes! Dempsey controls an Ecuadorian clearance with his chest and calmly squares the ball, with a defender draped all over him, for Zardes to tap in at the far post.

64' Paredes now into the book for a dangerous play, as he plays a ball with his feet that, clipping Wood's shoulder.

59' Dempsey tries his luck from the top of the 18 with a first-time hit from a Wood square ball, but the Sounders striker's shot sails high over the bar.

51' Double sending off! Antonio Valencia sees red! Valencia gives Bedoya a good kick for his second yellow, and then he tangles with Jones, who's also sent off for getting his hands into Arroyo's face. Not a slap, not a punch, but it looked violent, and it's a straight red. And a moment later, Bobby Wood is shown a yellow card, and he'll miss the semifinal should the U.S. advance.

49' Ecuador catch the U.S. defense napping early, as Valencia slips between Cameron and Brooks in the area but he can't quite get his head onto the chipped service and the ball rolls out for a goal kick.

46' The second half is underway in Seattle, with no substitutes for either side.

Half-time: Klinsmann firing up the CenturyLink Field as he makes his way to the U.S. dugout.

Half-time: Not sure Klinsmann makes any changes in the first 15 minutes of the second half. His XI has been impressive. Zardes perhaps not generating much going forward, but his speed has been essential in helping Besler contain Ecuador's speedy wingers.

45' That's half-time at CenturyLink Field, where the U.S. leads Ecuador 1-0 through a Clint Dempsey header. The U.S. defense has held steady against Ecuador's quick counter-attacks, and the Americans' transition play has been exemplary.

42' Bradley sends a diagonal ball forward for Dempsey, who runs into space and lays off for the onrushing Bedoya, but his left-footed effort is a tame one and Dominguez saves easily.

John Brooks is turning into a classic uncompromising center back. 🇺🇸 Jaap Stam.

38' Antonio Valencia goes into the book as he tabletops Brooks, who takes a little while to get back to his feet.

35' Ecuador playing with a little more physicality now, leaving their marks on their challenges. Dempsey, Bedoya and Besler have all been roughed up in the past two to three minutes.

33' Brooks is visibly limping and is also holding his right elbow. He was down for a moment, rejoined play but at the last stopped the referee has checked in with him. Play resumes with the defender in the game.

30' John Brooks makes an enormous block. Arroyo is all alone on the penalty spot, and as the Ecuador attacker is fed by a square ball from the wing, but his first-time shot is blocked by a sliding Brooks. The Hertha Berlin center-back has been everywhere.

27' Dempsey very nearly adds another. The Sounders man is found with space on the left side of the area, and he lets fly with his left foot. Dominguez gets down well to his left to save and hold on.

Wood's runs have caused a lot of problems for Ecuador so far. He was involved in the run-up here as well. #usmnt

22' GOAL for the U.S.! Ecuador turn over possession in the midfield, Dempsey collects the ball and sends Wood in on goal. The Hamburg man shakes a defender but is carried wide; he lays off for Jones, who chips a ball to the penalty spot for Dempsey to head home. Beautiful transition play from the U.S.

19' Cameron turns the ball over in his own area and Arroyo absolutely blasts a shot, which skims over the top of the net. Looked like it may have been slightly wide as well. If that's on target, though, Guzan doesn't have a chance.

15' The U.S. with a little set play from a corner. Zardes pulls a defender away from the near post, making space for Cameron. His flick on fails to find anyone at the back post. Clever piece of play there.

17' Enner Valencia briefly finds himself on the left side and catches Fabian Johnson upfield, but the Ecuador flyer can't create a scoring chance. At the other end, Bobby Wood is sprung into space, but his little flick as he's being dragged down doesn't find the target. No whistle on the play.

14' The U.S. with a slight edge in possession, 52 percent to 48.

10' Valencia nearly dribbles through three defenders in the U.S. box, but loses possession and springs the U.S. on the counter. Jermaine Jones slows play and switches field to the left, where there's no one with a white shirt and the ball goes out of play.

2' Less than two minutes in and the U.S. defense has had its first scare as Matt Besler gets caught up field as Enner Valencia streaks up the right flank. His cross is to no one in particular, though, and the U.S. clear the danger.

1' The U.S. and Ecuador are underway in Seattle!

9:34 ET: CenturyLink Field now holding a moment of silence for the victims of Sunday's tragedy in Orlando.

9:30 ET: Teams now walking out onto the pitch at CenturyLink Field and the anthems are playing.

9:27 ET: Earlier in the week, the number of tickets sold for this match was officially 42,000. Hearing there are around 50,000 in paid attendance now a few minutes before kickoff.

9:18 ET: Jurgen Klinsmann has opted to slide Fabian Johnson to right-back to replace DeAndre Yedlin, with Matt Besler filling the void at left-back. The Sporting Kansas City center-back will be tasked with stopping Enner Valencia on Ecuador's right flank.

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